Trolley.



M. ADAMSKI.

TROLLEY. APPLICATION FILED APR.25, 1913.

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Patented Dec. 30, 1913.

INVENTOR M ficlam iti MARTIN ADAMSKI, 0F STONEBORO, PENNSYLVANIA.

TROLLEY.

Specification of Letters Patent.

Application filed April 25, 1913.

Patented Dec. 30, 1913.

Serial No. 763,514.

To all whom it may concern:

Be it known that I, MARTIN ADAMsKI, a subject of the Emperor ofAustria-Hungary, residing at Stoneboro, in the county of Mercer andState of Pennsylvania, have invented certain new and useful Improvementsin Trolleys, of which the following is a specification, reference beinghad therein to the accompanying drawing.

This invention relates to trolley poles, and more particularly to thattype provided with means in a manner as hereinafter set forth, wherein awide contact surface is provided for engaging a trolley wire, rail orelectric conductor.

The object of my invention is to provide a simple, durable andinexpensive trolley pole having a triangular-shaped head that is heldnormally in engagement with a trolley wire by a novel device located inthe roof of a car or vehicle.

I attain the above and other objects by a mechanical construction thatwill be herein after specifically described and then claimed, andreference will now be had to the drawing, wherein Figure 1 is a sideelevation of a trolley pole in accordance with this invention, and Fig.2 is a plan of the same.

Further describing my invention in detail with reference to theaccompanying drawing, wherein like numerals denote corresponding partsthroughout: 1 denotes, by the way of an example, the roof of a streetcar and mounted in the roof 1 is a cylinder or pot 2 containing a coiledcompression spring 3. The pot 2 is closed by a detachable plate 4 havinga central opening 5 for a piston 6. The inner end of the piston 6 has ahead 7 engaging the coiled compression spring 3 and the outer end of thepiston is bifurcated and pivotally connected by a pin 8 to a curvedtrolley pole 9. The upper end of the pole 9 has a triangularshaped head10 that presents a wide contact surface 11 for engaging a trolley wire12 or other electric conductor.

To prevent the trolley pole from swinging sidewise relatively to theroof of the car, the roof is provided with guides or uprights 13 and 14,the latter receiving the lower end of the trolley pole and the formerreceiving said pole when the pole is lowered through tllti medium of acord 15, attached to said po e.

From the foregoing it will be observed that the dash pot yieldablysupports the trolley pole and that the spring within the dash pot is ofsufficient tension to hold the head of the pole in engagement with thewire 12, and the car can safely pass around a curved section of wire ormove with considerable rapidity without any danger of the electricoperating circuit being broken by a displaced trolley.

One embodiment of the invention has been illustrated but it is to beunderstood that the structural elements are susceptible to suchvariations and modifications as fall within the scope of the appendedclaim.

That I claim is A trolley comprising a cylinder adapted to be secured tothe roof of a car, a spring arranged therein, a piston mounted on saidspring, a piston rod secured to said piston and projecting from saidcylinder, a trolley pole including a triangular-shaped head providing abroad bearing surface for the trolley wire, said pole curving from itslower to its upper terminus, means for pivotally connecting the pole andsaid rod in proximity to the lower terminus of the pole. and guidesadapted to be secured to the roof of a car and associated with saidpole.

In testimony whereof I aflix my signature in the presence of twoWitnesses.

MARTIN ADAMSKI.

Witnesses:

S. FIEDNAN, JOHN KELLY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, I). G.

